软岩底板大巷锚注支护技术研究  

Research on Bolt-grouting Support Technology for Main Roadway in Soft Rock Floor

作　　者：马雁飞 Ma Yanfei(Jinneng Holding Coal Industry Group,Zhaozhuang Coal Industry Co.,Ltd.,Shanxi Changzhi 046600)

机构地区：[1]晋能控股煤业集团赵庄煤业有限责任公司安全监察部,山西长治046600

出　　处：《山东煤炭科技》2023年第3期58-60,67,共4页Shandong Coal Science and Technology

摘　　要：针对软岩底板大巷频繁底鼓的问题,制定了帮部和底板锚注支护方案,底板采用底角注浆锚杆和中空注浆锚索,选用高性能纳米加固材料和超细水泥注浆材料。效果考察表明:底板锚注治理段3年内底鼓量仅为300 mm,服务期限由原来的2个月提高至3年以上。In view of the problem of frequent floor heave in the main roadway of soft rock floor,the side and floor bolt-grouting support scheme is formulated.The floor adopts bottom angle grouting anchor rod and hollow grouting anchor cable,high-performance nano reinforcement material and ultra-fine cement grouting material are selected.The effect investigation shows that the floor heave volume of the floor bolt-grouting treatment section is only 300 mm within 3 years,and the service period is increased from 2 months to more than 3 years.

关 键 词：软岩 底板 注浆 加固 

分 类 号：TD327.3[矿业工程—矿井建设]